HTTP Request Smuggling The advisory has been revoked - it doesn't affect any version of package rubygem-webrick.src (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-RUBYGEMWEBRICKSRC-15072904
- published24 Jan 2026
- disclosed22 Sept 2024
Introduced: 22 Sep 2024
CVE-2024-47220 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rubygem-webrick.src package and not the rubygem-webrick.src package as distributed by RHEL.
An issue was discovered in the WEBrick toolkit through 1.8.1 for Ruby. It allows HTTP request smuggling by providing both a Content-Length header and a Transfer-Encoding header, e.g., "GET /admin HTTP/1.1\r\n" inside of a "POST /user HTTP/1.1\r\n" request. NOTE: the supplier's position is "Webrick should not be used in production."
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2314051
- https://access.redhat.com/security/cve/CVE-2024-47220
- https://github.com/ruby/webrick/issues/145
- https://github.com/ruby/webrick/pull/146/commits/d88321da45dcd230ac2b4585cad4833d6d5e8841
- https://github.com/ruby/webrick/issues/145#issuecomment-2369994610
- https://github.com/ruby/webrick/issues/145#issuecomment-2372838285